Instrument case for an exerciser



FIG. 1 is a perspective view of an instrument case for an exerciser showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side elevational view thereof, the opposite side being a mirror image of that shown;

FIG. 7 is another perspective view of the design;

FIG. 8 is a perspective view from the rear elevation view of the design; and,

FIG. 9 is a perspective view thereof, wherein the broken line showing of the exerciser is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an instrument case for an exerciser, as shown and described. 